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| author | Sami Tolvanen <samitolvanen@google.com> | 2015-04-03 12:03:40 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2015-04-03 12:03:40 +0200 |
| commit | f2f770d74a8d12265e023f2792ad2eb996cabe1a (patch) | |
| tree | 063649f19b656ad05f618da8fcce992a1d58d2ab /arch/arm/crypto/sha256_glue.h | |
| parent | crypto: api - Change crypto_unregister_instance argument type (diff) | |
| download | linux-f2f770d74a8d12265e023f2792ad2eb996cabe1a.tar.xz linux-f2f770d74a8d12265e023f2792ad2eb996cabe1a.zip | |
crypto: arm/sha256 - Add optimized SHA-256/224
Add Andy Polyakov's optimized assembly and NEON implementations for
SHA-256/224.
The sha256-armv4.pl script for generating the assembly code is from
OpenSSL commit 51f8d095562f36cdaa6893597b5c609e943b0565.
Compared to sha256-generic these implementations have the following
tcrypt speed improvements on Motorola Nexus 6 (Snapdragon 805):
bs b/u sha256-neon sha256-asm
16 16 x1.32 x1.19
64 16 x1.27 x1.15
64 64 x1.36 x1.20
256 16 x1.22 x1.11
256 64 x1.36 x1.19
256 256 x1.59 x1.23
1024 16 x1.21 x1.10
1024 256 x1.65 x1.23
1024 1024 x1.76 x1.25
2048 16 x1.21 x1.10
2048 256 x1.66 x1.23
2048 1024 x1.78 x1.25
2048 2048 x1.79 x1.25
4096 16 x1.20 x1.09
4096 256 x1.66 x1.23
4096 1024 x1.79 x1.26
4096 4096 x1.82 x1.26
8192 16 x1.20 x1.09
8192 256 x1.67 x1.23
8192 1024 x1.80 x1.26
8192 4096 x1.85 x1.28
8192 8192 x1.85 x1.27
Where bs refers to block size and b/u to bytes per update.
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Cc: Andy Polyakov <appro@openssl.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm/crypto/sha256_glue.h')
| -rw-r--r-- | arch/arm/crypto/sha256_glue.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/arm/crypto/sha256_glue.h b/arch/arm/crypto/sha256_glue.h new file mode 100644 index 000000000000..0312f4ffe8cc --- /dev/null +++ b/arch/arm/crypto/sha256_glue.h @@ -0,0 +1,23 @@ +#ifndef _CRYPTO_SHA256_GLUE_H +#define _CRYPTO_SHA256_GLUE_H + +#include <linux/crypto.h> +#include <crypto/sha.h> + +extern struct shash_alg sha256_neon_algs[2]; + +extern int sha256_init(struct shash_desc *desc); + +extern int sha224_init(struct shash_desc *desc); + +extern int __sha256_update(struct shash_desc *desc, const u8 *data, + unsigned int len, unsigned int partial); + +extern int sha256_update(struct shash_desc *desc, const u8 *data, + unsigned int len); + +extern int sha256_export(struct shash_desc *desc, void *out); + +extern int sha256_import(struct shash_desc *desc, const void *in); + +#endif /* _CRYPTO_SHA256_GLUE_H */ |